hayaku.online
JSON Format & Minify
Pretty-print JSON with indentation, or minify it—entirely on your device. Nothing is sent to our servers.
FAQ
Is JSON sent to the server when formatting?
No. Formatting and minifying run entirely in your browser; we do not upload your text.
Why do I see “Invalid JSON”?
Common causes: unescaped quotes/backslashes in strings, trailing commas, or single quotes. Use the reported position to find the issue.
Format vs minify?
Format adds indentation and line breaks for reading. Minify removes extra whitespace. The data is the same.
What is the foldable result tree for?
It helps explore large objects/arrays. Copy still uses the full formatted or minified text.